Lock construction.



PATENTED SEPT. 1,. 1908.

H. G. VOIGHT.

' THE NORRIS PETERS cm, WASHINGTON, u. c.

SHEETS-SHEET 1.

( 1 vwe who;

No. 897,686. PATENTED SEPT. 1, 1908. I

H. G. VOIGHT. LOOK CONSTRUCTION.

APPLICATION FILED MAR.18,1908.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

HENRY G. VOIGIIT, OF NEW BRITAIN, CONNECTICUT, ASSIGNOR TO RUSSELL &ERWIN MANUFACTURING COMPANY, OF NEW BRITAIN, CONNECTICUT, A CORPORATIONOF CONNECTICUT.

LOCK CONSTRUCTION.

Specification of Letters Patent.

Patented Sept. 1, 1908.

To all whom it may concern.

Be it known that I, HENRY G. VoIGHT, a citizen of the United States,residing at New Britain, Hartford county, State of Connecticut, haveinvented certain new and useful Improvements in Lock Construction, of'ahich the following is a full, clear, and exact description.

My invention relates to improvements inv locks, and has for its objectmeans forconnecting the various parts of the lock to a door in a simpleand efficient manner. In this instance the connection of the lock to oneside, and the escutcheon plate to the opposite side of the door iseffected from the inner side of the door, the lock case proper beingremovable, whereby, when removed, said connection or disconnection ofthe parts may be effected. When present the lock case covers or hidesthe connecting devices.

' In the drawings, Figure 1 is an elevation of my invention, partly insection; Fig. 2 is a horizontal section on the plane of line :c9c ofFig. 1 Fig. 3 is a view of the inner side of the upper end of theescutcheon plate Fig. 4 is a plan view thereof Fig. 5 is a view of theinner side of the upper end of the seat plate; Fig. 6 is a plan viewthereof.

1 represents a door stile.

2 is the lock case containing any suitable lock mechanism (not shown)and arranged to be secured to the inside of the stile 1.

3 is an escutcheon plate arranged to be secured to the outer side of thestile 1. In the preferred form, two passages are made through the doorstile, although a single passage will sull'ice. 4 is a seat plate uponwhich the lock case 2 may be mounted at the proper time.

5 is a boss on the inner side of the seat plate 4, two of which may beprovided, as shown in Fig. 1. These bosses are preferably of circularoutline and arranged to stand in corresponding passages in the doorstile 1. The escutcheon plate 3 is preferably provided at its inner sidewith bosses 6-6, corresponding with bosses 55. By making the passageconform to the size and outline of the bosses 56, the parts 3-4 will beproperly centered on the door stile, preparatory to introducing theclamping devices, which, in the form shown, are screws 77, which passthrough the seat plate 4 and screw into the bosses 66 or extensionstherefrom, provided to furnish a sufficient length of screw-thread.

By setting the parts thus far described (the case 2 being for thepresent detached), the

parts 3 and 4 may be securely clamped or fastened to the slide 1. Whenthis has been accomplished, the lock case 2 is applied to the seat plate4, it being properly adapted there to so as to take an effective seatthereon. To secure the case 2 on the seat 4, alternately registeringlugs 8 -9 and 10-11 may be provided, having screw passages which comeinto alinement when the parts are in the proper position, thuspermitting the holding screws 12-12 to be inserted (see Fig. 2). .Thisaccomplished, all the parts will be found securely held in place, thescrews 7 being entirely hidden from view.

I have not attempted to show the lock mechanism, nor the method ofconnecting the operating devices, such as knobs, therewith, butobviously this may be readily provided for by making passages throughthe bosses 66 and 5-5. The seat plate and the escutcheon plate are thetwo members which. are adapted to be clamped to the opposite sides ofthe door. After the parts are securely clamped in lace, the lock case isapplied to the seat p ate and performs the double function of a carrierfor the lock mechanism and a protector to cover and shield. the clampingdevices employed to draw the two members into clamping engagement withthe door stile. The lock case 2 is provided with a cap-plate 14, whichis secured to the lock case in the usual manner to close in its rearside. This cap-plate 14 is suitably recessed to fit over the seat plate4.

What I claim is:

-1. In a device of the character described, two members arranged tostand on opposite sides of a door and including two plates ar ranged tomake a suiface engagement with said door, a clamping device cooperatingwith both of said plates, each of said plates having a passage, meanswhereby said passages will be arranged in alinement, a lock case adaptedto one of said plates, and means for detachably connecting said lockcase with said plate, said means making direct engagement with both ofsaid parts.

2. In a device of the character described, an escutcheon plate adaptedto the outside of a door, a seat plate adapted to the inside of thedoor, means "for securing said plates together to clamp them securely tosaid door, a lock case adapted to be secured to said sea-t plate, andattaching devices cooperating with said plate and said lock case todetachably secure the same to each other.

3. In a device of the character described, an escutcheon plate adaptedto the outside of a door, a seat plate adapted to the inside of thedoor, means-operable from the inside of the door and cooperating withboth of said 1 plates to clamp them against opposite sides of said door,a lock case adapted to said seat plate, lugs on said parts arranged toaline or register, and an interlocking device arranged 15 to passthrough said lugs to detachably c011- nect said parts.

HENRY G. VOIGI-IT.

v Witnesses:

M. S. WIARD, HARRY E. MILES.

